Beat it! Couldn't figure out how to sign the contract at the end so had to go the traitor route. The final boss was *a lot* easier than the third boss, probably because of the slower pace of the fight. Also probably cause I got super lucky and ended the game with BerserkX2 +Fast attacks. I Got 100% Purity each fight, don't know if that affected the ending at all. May try it again some time to see if there's a way to sign that darn contract.
Unfortunately no signature for the ending (we ran out of time haha) the final boss and the 3rd boss need to be tweaked a bunch, full purity made it so all upgrades had no side effects, but no alternate ending (once again time restraints) you had a really good build tho! Thank you so much for playing!!